U.S. President Barack Obama arrived in China’s economic center Shanghai on Sunday night, November 15th 2009, ______a state visit to China.
| A．starting | B．started | C．to start | D．having started |
Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _____ introduced the idea in 1953 _____ aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that | C．what; that | D．which; when |
I strongly recommend that the information______ in my report ____ to our headmaster without delay.
| A．to be referred to; to be e-mailed | B．referring to; e-mail |
| C．referred to; be e-mailed | D．being referred to; being e-mailed |
It was too dark, and I couldn’t _______ the words written on the blackboard.
| A．look at | B．turn up | C．decide on | D．make out |
______ impressed the audience most was ______ the magician Liu Qian played in this year's Spring Gala.
| A．What; what | B．What; that | C．That; what | D．That; that |
Lin Xi, a Chinese in Berlin, went to the World Championships in Athleties, she saw China’s Bai Xue win the gold medal.
| A．where | B．when | C．who | D．which |